his user name is kwikkordead, btw

 

Of course he called me right after I posted. You on here, Idaho ford guy?

He says the IPR is fine. Hmmn...
He says he's 99.95% sure that the injector is the problem, and he told me air backs up in the system causing the oil to not reach the right pressure. I asked him if they tried the tin nut, and he said no, they've worked only with the sensors themselves, so I asked him if he would. He said he would, but seemed annoyed. I tried my best, and told him I was worried we'd be left in the desert with 3 small kids on our way home, and I really needed to feel that everything was checked out. All true.

So I think he will come back at me and say the IPR tin nut is fine, and it's the injector, and then we'll be stuck in the desert with 3 small kids.

 

You are in an emergency situation.

Tell the repair man to replace the CPS, that you want a new one for peace of mind. Also instruct him to hand the one he removes to you for a keepsake. Currently he is only responding to the scanners info.
Afterwards**Try to start the truck to see what happens.**
Now do the same with the IPR sensor if you suspect it.

I think kwikkordead is dealing with an emergency of his own.

 

David, I hate to throw money at stuff, but I understand why you suggested just replacing the CPS.
I agree, he is just going by computer readings, but he said the master tech (hmmn) got down there and blocked the injector and the pressure went up to 2000.

 

Sounds like you have made some decisions about the truck.
What is your plan for the repair?

 

David, I have no plan. I just want to get home, and then I can really learn what I need to about the truck by fixing things myself. I've learned a lot already.

I'm waiting on the guy to call me back, but it's 5 minutes till they close.

 

X-2, where in California is home? I know you said you are a 1000 miles away.
I hope that you are able to locate the problem and repair it without wondering if that was really it. Peace of mind is what you will need as you have 600 miles of desert between there and home. If you are heading south on I-5 in central Ca. and have any problems let me know.

 

We're up in Shasta County, but it's complicated, because we are on the road a lot. We roadschool the kids, but we'll be home for a couple of months when we get back, I think.

 

Sure hope you get it worked out and get home safe with the wife and kids. And reps to Bill for the generous offer.

 

Wow, what an ordeal!
After reading this thread, (thanks for the vote of confidence, people), what comes to mind for me is the same as you all have already mentioned.
Cam Position Sensor.
Injection Pressure Regulator.
Also, one injector will NOT shut the whole engine down. It will make it misfire, but not stall out.
Also it's possible that the Injector Driver Module is failing.

 

Well, he called me back and said the tin nut is fine, just as I suspected. He says everything else checks out fine, and swears the CPS is fine. Guys, I'm at a loss on how to deal with this, and I do NOT want to get stuck again.

Dan, first I've heard of the Injector Driver Module. My brain feels numb, but I'll look around about that one.
Husband said to let them do the work, because we have to get home, and he can't seem to understand that just because they do some work, doesn't mean we'll make it home without it happening again.

What do you guys do when you are on the road and can't figure something out? Do you carry those code readers around with you and a stack of manuals? This is important, since our truck carries our home most of the time.

 

Prayer and a spare CPS work most of the time.

 

We'll go to auto zone and pick up a CPS and what size wrench? #10?

 

10 mm, For $25 it will be worth it to eliminate that question. If thats not the problem you will have a spare for when it does.

 

I like to carry around an internet connection so I have access to FTE. A scanner can come in handy too.

Take a deep breath and relax. You've done well so far asking questions both here and from the dealer.

Since the Ford tech is doing the work, let's try a different approach. The same one you used when discussing the GPR. Instead of offering suggestions on what he needs to check, let's help him think about the injector issue.

Some back ground info. The HEUI system uses engine oil to fire the injectors from the HPOP (high pressure oil pump). A leaking o-ring or bad injector could conceivably bleed off enough pressure to cause a no start, but typically it takes several bad o-rings or bad injectors to bleed off that much pressure. The HPOP can produce 3,000 psi while cranking and you only need 500 psi to start. #2 injector is the front injector on the driver side, and just so happens to sit under the ICP (injection control pressure) sensor. The IPR is what increases the oil pressure as you're cranking, but we'll get to that after we rule out the injector.

The 7.3 will start and run on only 4 cylinders. The IDM (injector driver module) tells the injectors when to fire, and if the IDM detects a bad injector soleniod it will shut down the entire bank. When one half of the engine is shut down, the truck will still start, and you can even drive it across town if you have to. It will shake and miss so bad you'll think the mirrors will fall off, but it will start up and run.



Now with a little understanding, the conversation you need to have with the Ford tech is, why do you think the Injector caused the stall and causes the no start? Then ask him how one bad injector could cause the no start.
Is it hydro-locked? ( injector broke and dumped so much fuel in the cylinder that the motor will not spin when you turn the key)
Did it burn a hole in the piston from dumping excessive fuel? (the answer is no since it would still start but we want him to think about that)
The electrical soleniod is bad? Remind him the truck should start even with the 9 pin connector on the driver side bank unplugged.
Could it be blown o-rings on the #2 injector bleeding off oil pressure causing the no start? Then ask him if he monitored ICP & IPR while cranking.

Then if you get a chance ask him what codes he pulled so we have some more info. I'd suggest you have your kids and some candy bars nearby. Tell them whoever makes the most noise when you hold a candy bar up in the air gets to eat it before lunch. Once you get as much info as you can from him, hold a candy bar above your head and let the kids start screaming and tell the tech you have to go and you'll call him back.

And Brother Les was thinking about cylinders #3 & #8, and those false readings are related to the new CPS that Ford installs during the recall.